Rock64+android usb3.0 does not work

[tllim]

Why USB 3.0 doesn't work?

I have using the USB 3/0 HDD and pendrive everyday and works well.

What type of USB 3.0 drive that you plan to attached? Please make sure that your device doesn't draw more than 900mA current.



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The problem appears when i switch  usb2.0 (bluetooth keyboard) and usb3.0 hdd.

When i connect both in usb2.0 everything works fine.

thanks

I have this issue as well. Earlier I had posted that I was having issues with my Rock64 4Gb board being very sluggish in Lakka and Android. It is my USB 3 port causing it, but mainly in conjunction with USB 2. If I only use USB 3 with my 4-port hub and plug everything into that, it all works perfectly. Things run very smoothly. But as soon as I plug in a USB 2 device (controller, flash drive, etc...) my Rock64 board gets extremely slow and laggy. 

Likewise, if I plug in my USB 2 4-port hub and plug everything into that (including anything USB 3) my Rock64 runs very smooth. As soon as I plug in a USB 3 device in the USB 3 port, it gets very laggy. 

So, like this:

USB2 in correct port: works
USB3 in correct port: works
USB2 in USB3 port: works
USB3 in USB2 port: works
USB2 in correct port + USB3 in correct port: lags system badly
USB3 in USB2 port + USB2 in USB3 port: works (Because all ports act as USB2 now)

I genuinely don't know what's going on here. It happens only in Android and in Lakka, but these are the only operating systems I've tried. I don't remember having this issue on previous builds (non-rooted) of Android, but I also haven't gotten around to trying an older build yet. 

Build info:
Rock64 4GB board w/heatsinks and fan
Rock64 PSU from Pine64
Android on 32Gb eMMC
Lakka on SD
Physical switch for dual-boot purposes (saves having to remove the jumper!)
Modified Raspberry Pi 3 case w/fan

Things I've tried to troubleshoot:
Single booting each OS
Removing the USB hubs from the picture
Several different USB2/3 cables and devices
Removing the fan from the GPIO power pins

Things I intend to try and will update later:
An older build of Android
A different Linux based OS from Lakka 
???

My takes is due to HDD power consumption behaviors if the HDD is 2.5" portable type. I have an USB 3.0 2TB 2.5" HDD that also has some funny behavior that like to enter into standby by no reason, it always has different behaviors on different USB ports either on PC or SBC. However, once I use the USB 2.0 cable, it behave normally.

No, my hubs and drives are all externally powered, so that isn't the issue. They're full size 3.5" drives with a powered external enclosure. Power isn't the issue. Likewise, my drives have different input ports for USB3 than my USB2 drives, so I cannot use a USB2 cable. All I can do is plug into the USB2 port.

Power isn't the issue, I'm certain of this. Somehow, USB3 does NOT work at all (and lags the SBC bad) when USB2 is also used. If I cannot figure it out, I'll simply use the device as USB2 only and continue looking for a SBC that does have a working USB3 port and move to that platform for my needs.

Noted.